James and Ferris Half Stock Percussion Target Rifle

Scope-sighted sharpshooter rifles were difficult to load, but
yielded long-range accuracy. Both U.S. and Confederate armies
employed sharpshooters armed with rifles of this type for
long-range shooting, including fire against enemy officers. Major
General John Sedgwick, commander of the Union Army's Sixth Corps,
was killed by a Confederate sniper at the Battle of Spotsylvania,
Virginia on May 9, 1864.